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. 2018 Aug 8;9:1837. doi: 10.3389/fimmu.2018.01837

Figure 4.

Figure 4

Morphology and prevalence of bronchiectasis. (A) Schematic presentation of normal bronchi and bronchi with bronchiectasis. The upper airways (blue) are more exposed to pathogens compared with the lower airways (orange). (B) Types of bronchiectasis. (C) Prevalence of bronchiectasis before and during IGRT. Data are from Quinti et al. (24).